EP 2809742 A4 20150729 - CELLULOSE NANOWHISKERS IN WELL SERVICES
Title (en)
CELLULOSE NANOWHISKERS IN WELL SERVICES
Title (de)
CELLULOSE-NANOWHISKERS IN BOHRLOCHDIENSTEN
Title (fr)
NANOCRISTALLITES DE CELLULOSE DANS DES PRÉPARATIONS DE PUITS
Publication
Application
Priority
- US 201261592921 P 20120131
- US 201213561158 A 20120730
- US 2013024061 W 20130131
Abstract (en)
[origin: US2013196883A1] A method is provided for use in various well services, the method including the steps of: (a) forming or providing a well fluid comprising cellulose nanowhiskers; and (b) introducing the well fluid into a well. The method can be used, for example, for increasing the strength of a cement, for increasing the viscosity of a water-based well fluid, such as for a kill pill, a fracturing fluid, a gravel packing fluid.
IPC 8 full level
C09K 8/64 (2006.01); C09K 8/58 (2006.01); E21B 43/22 (2006.01)
CPC (source: EP US)
C04B 18/24 (2013.01 - EP US); C04B 28/02 (2013.01 - EP US); C09K 8/10 (2013.01 - EP US); C09K 8/467 (2013.01 - EP US); C09K 8/70 (2013.01 - EP US); C09K 2208/10 (2013.01 - EP US); Y02W 30/91 (2015.05 - EP US)
Citation (search report)
- [I] WO 2006072069 A2 20060706 - SUN DRILLING PRODUCTS CORP [US], et al
- See references of WO 2013116470A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 2013196883 A1 20130801; US 9133384 B2 20150915; AU 2013215081 A1 20140612; AU 2013215081 B2 20150903; BR 112014017744 A2 20170620; BR 112014017744 A8 20170711; CA 2862032 A1 20130808; EA 028131 B1 20171031; EA 201490868 A1 20141230; EA 201490868 A8 20160129; EP 2809742 A1 20141210; EP 2809742 A4 20150729; EP 2809742 B1 20190313; MX 2014008282 A 20140821; WO 2013116470 A1 20130808
DOCDB simple family (application)
US 201213561158 A 20120730; AU 2013215081 A 20130131; BR 112014017744 A 20130131; CA 2862032 A 20130131; EA 201490868 A 20130131; EP 13744049 A 20130131; MX 2014008282 A 20130131; US 2013024061 W 20130131